Southwire 55667333 Primary Wire 18 Awg 33 Feet Black

Product Description

The Southwire Company LLC 55667333 is an 18 AWG primary wire supplied in a 33-foot length with a black jacket. Primary wire is a general-purpose single-conductor stranded wire used in low-voltage DC wiring applications across automotive, HVAC controls, pool equipment wiring, and light commercial electrical work. The 18-gauge conductor suits signal and control circuits that draw low current. The black jacket aids in polarity and circuit identification when used alongside other wire colors. This product is sold as an individual card and is packaged six units per package from the supplier.

This wire is commonly used by electricians, HVAC technicians, and pool service professionals for running low-voltage control wiring, sensor leads, and accessory circuits. Typical applications include thermostat wiring extensions, control panel wiring, pump motor control leads, and general DC harness repairs. The 33-foot card length is practical for service work where shorter runs are needed without purchasing a full spool.

Key Features

• 18 AWG conductor suitable for low-current control and signal circuits
• 33-foot length per card — practical for service and repair runs
• Black jacket for circuit identification and polarity marking
• Carded format for easy jobsite handling and storage
• Packaged 6 cards per package for stocking efficiency

Compatibility

Designed as a general-purpose primary wire for use in low-voltage DC control, automotive, and light electrical wiring applications where 18 AWG conductors are specified.

Installation Notes

Installation should be performed by a qualified electrician or trade professional familiar with applicable NEC requirements for conductor sizing and circuit protection. Always de-energize the circuit and verify zero voltage before making connections. Use appropriate terminals, connectors, or wire nuts rated for the conductor gauge and circuit voltage. Avoid exceeding the current-carrying capacity specified for 18 AWG wire in the governing electrical code.

Technical Specifications

• Conductor Gauge: 18 AWG
• Length: 33 feet
• Jacket Color: Black
• Wire Type: Primary Wire
• Package Quantity: 6 per package
• Weight: 1.92 pounds

Standard Information

• Brand: Southwire Company LLC
• Manufacturer Part Number: 55667333